CN113756243A - A quick motor sweeper for highway is kept a public place clean - Google Patents
A quick motor sweeper for highway is kept a public place clean Download PDFInfo
- Publication number
- CN113756243A CN113756243A CN202111316658.XA CN202111316658A CN113756243A CN 113756243 A CN113756243 A CN 113756243A CN 202111316658 A CN202111316658 A CN 202111316658A CN 113756243 A CN113756243 A CN 113756243A
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- CN
- China
- Prior art keywords
- garbage
- suction
- pipe
- cleaning
- air
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0863—Apparatus loosening or removing the dirt by blowing and subsequently dislodging it at least partially by suction ; Combined suction and blowing nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H2001/0881—Details for pneumatically dislodging or removing not related to the mouth-piece
Abstract
The invention discloses a quick sweeper for cleaning a highway, which comprises a chassis, a garbage suction and pickup device, a wet dust removal device and a driving device, wherein the chassis is provided with a dust suction port and a dust removal port; the chassis comprises a main frame and an auxiliary frame; the garbage suction and pickup device is arranged on the auxiliary frame and used for sucking and picking up garbage on the road surface; the wet dust removal device is arranged on the auxiliary frame and is used for dust removal of dust generated in the process of sucking and picking up the garbage by the garbage sucking and picking up device; the driving device is arranged on the main frame and used for driving the garbage suction and pickup device and the wet dust removal device to work. The invention adopts the principle of circulating air power, utilizes the air outlet to assist in sucking and picking up the garbage, saves the power consumption of mechanical side vertical brushes and rolling brushes to assist in sucking and picking up the garbage, and is suitable for removing the garbage on the road surface in high-speed driving because the traditional side brushes which are contacted and rubbed with the road surface are not arranged.
Description
Technical Field
The invention relates to the technical field of motor sweeper, in particular to a quick motor sweeper for cleaning a highway.
Background
Road traffic has become one of the most important transportation means for human production and life, and freeways have become the preferred way to produce logistics of data and human travel traffic due to their efficient and fast characteristics. The highway is used as a traffic facility and serves various transport vehicles, transport materials are scattered inevitably, the materials scattered on the road surface have adverse effects on the driving efficiency, the driving safety and even the service life of the road surface, and for the highway, the adverse effects are more prominent and even cause serious traffic accidents of vehicle damage and human death, so that the cleaning and sanitation of the highway are taken as daily maintenance operation, the workload is huge, and the importance is remarkable.
At the early stage of highway operation, road cleaning and maintenance operations are completed manually. With the continuous improvement of social civilization degree and productivity level, especially the improvement of safety production requirement, manual cleaning can not adapt to the daily cleaning operation requirement of expressway, maintenance units are always seeking the high-speed cleaning vehicle suitable for the cleaning requirement of expressway, and the cleaning vehicle for cleaning and maintaining expressway is required to have high efficiency and rapidness because of high driving speed of expressway, so that the cleaning vehicle for cleaning and maintaining expressway is required to have high-speed operation capability to avoid influencing the driving speed of running vehicle due to cleaning operation of cleaning vehicle, and further reduce the operation capability and use efficiency of expressway, therefore the cleaning vehicle with the cleaning operation speed of 60km/h at the lowest driving speed of ordinary expressway is required to be selected.
However, for various reasons, it is difficult to find a high-speed sweeping vehicle meeting the cleaning requirements of cleaning the expressway, and the cleaning vehicle suitable for cleaning the municipal roads is selected, in order to generate disturbance on road surface garbage to help negative pressure suction and pickup effect and improve suction and pickup efficiency, the existing municipal sanitation vehicle generally adopts a side brush to enlarge cleaning width, but the phenomenon of rear-end collision between the running vehicle and the cleaning vehicle can be easily caused by the added side brush, which forms an unsafe factor, meanwhile, the side brush is easy to vibrate and jump under the impact of the road surface when running at high speed, can not stably contact the road surface, can not keep the normal dust collecting effect, therefore, the existing municipal sanitation vehicle can only carry out low-speed running cleaning at the cleaning operation speed not exceeding 20km/h, and can not meet the speed requirement of cleaning operation of the expressway.
Disclosure of Invention
The invention aims to provide a quick sweeper for cleaning a highway, which aims to solve the problems of the background technology.
The technical scheme of the invention is as follows: a quick sweeper for cleaning expressway includes chassis, garbage sucking and picking device, wet dust collector and driver; the chassis comprises a main frame and an auxiliary frame; the garbage suction and pickup device is arranged on the auxiliary frame and used for sucking and picking up garbage on the road surface; the wet dust removal device is arranged on the auxiliary frame and is used for dust reduction of dust generated in the process of sucking and picking up the garbage by the garbage sucking and picking up device; the driving device is arranged on the main frame and used for driving the garbage suction and pickup device and the dust removal device to work.
Preferably, the garbage suction and pickup device comprises a garbage collection box, a fan, a suction nozzle, a blowing hose and an air suction hose; the garbage collection box is arranged on the auxiliary frame; the fan is arranged on the side wall of the garbage collection box, and an air inlet of the fan is communicated with the side wall of the top of the garbage collection box through an air inlet pipe; the suction nozzle is arranged below the auxiliary frame through the lifting oil cylinder, an air blowing channel and an air suction channel are formed in the suction nozzle through a partition plate, and the air blowing channel is positioned behind the air suction channel; one end of the air blowing hose is communicated with an air blowing channel arranged in the suction nozzle, and the other end of the air blowing hose is connected with the air outlet of the fan; the one end of the hose that induced drafts with the passageway intercommunication that induced drafts that sets up in the suction nozzle, the other end of the hose that induced drafts is connected with the soil pick-up pipe, the other end of soil pick-up pipe and garbage collection box's lateral wall intercommunication, soil pick-up pipe is located the below of air-supply line.
Preferably, the rear side wall of the suction nozzle close to the blowing passage is arc-shaped.
Preferably, the front side wall and the rear side wall of the suction nozzle are respectively connected with a roller for adjusting the ground clearance of the suction nozzle through a connecting frame.
Preferably, the suspension mechanism is a lift cylinder.
Preferably, wet dust collector is equipped with dust removal water pump including fixing the clean water tank on the sub vehicle frame on the clean water tank, and dust removal water pump's water inlet passes through the inside intercommunication of drinking-water pipe and clean water tank, and dust removal water pump's delivery port is connected with the shunt tubes, the sewage suction pipe vertically is equipped with the multiunit fog nozzle along it, and every group fog nozzle all has a plurality ofly, and encircles and set up on the lateral wall of sewage suction pipe, every fog nozzle all through the raceway with the shunt tubes intercommunication, all be equipped with a plurality of second fog nozzles on the circumference lateral wall of suction nozzle, every second fog nozzle all through the raceway with the shunt tubes intercommunication.
Preferably, the driving device comprises a power take-off transfer case arranged on the main frame, the input end of the power take-off transfer case is connected with the output shaft of the gearbox arranged on the chassis through a transmission shaft, and the output end of the power take-off transfer case is respectively connected with the input end of the fan and the input end of the dust removal water pump through a belt transmission mechanism.
Compared with the prior art, the invention has the beneficial effects that:
1. the garbage suction and pickup device adopts the circulating air power principle, utilizes the air outlet to assist in sucking and pickup the garbage, and saves the power consumption of the mechanical side vertical brush and the rolling brush to assist in sucking and pickup.
2. The dust removal device adopts a wet dust removal principle of multiple spraying, can ensure good dust removal effect, and simultaneously reduces the trouble that the accumulated dust of the filter cylinder needs to be cleaned frequently during dry dust removal and the use cost caused by replacing the filter cylinder.
3. The mechanical sliding friction part is not arranged between the whole sweeper and the road surface, so that the rigid contact between the operation part and the road surface is eliminated, the motion impact between the operation part and the road surface and between the operation part and road facilities in the operation process is reduced, and the sweeper can operate at higher speed.
4. The power take-off transfer case is used for replacing the auxiliary engine, the driving of the single engine of the whole vehicle is realized, the main operation device adopts mechanical driving, the transmission efficiency is higher, and the energy-saving and emission-reducing effects are obvious.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is an enlarged view of the structure of the suction nozzle of the present invention;
FIG. 3 is a schematic view of the structure of the sewage suction pipe according to the present invention;
fig. 4 is a cross-sectional view taken at a-a of fig. 3 in accordance with the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings 1 to 4. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the invention, "a plurality" means two or more unless otherwise specified.
Examples
As shown in fig. 1 to 4, a rapid sweeping vehicle for cleaning a highway comprises a chassis, a garbage suction device, a dust removing device and a driving device; the chassis comprises a main frame 1 and an auxiliary frame 6, an engine on the chassis is the only power source of the whole vehicle and provides power for all working devices, and the main frame 1 bears the structural weight of all working devices and provides an installation foundation and an arrangement space for all working devices; the garbage suction and pickup device is arranged on the auxiliary frame 6 and is used for sucking and picking up garbage on the road surface; the wet dust removal device is arranged on the auxiliary frame 6 and is used for dust reduction of dust generated in the process of sucking and picking up the garbage by the garbage sucking and picking up device; the driving device is arranged on the main frame 1 and used for driving the garbage suction and pickup device and the wet dust removal device to work.
Further, as shown in fig. 1 and 2, the garbage suction and pickup device includes a garbage collection box 8, a blower 10, a suction nozzle 3, a blowing hose 5 and a suction hose 4; the garbage collection box 8 is arranged on the auxiliary frame 6; the fan 10 is arranged on the side wall of the garbage collection box 8, and an air inlet of the fan 10 is communicated with the side wall of the top of the garbage collection box 8 through the air inlet pipe 7; the suction nozzle 3 is arranged below the auxiliary frame 6 through a suspension mechanism, wherein the suspension mechanism is a lifting oil cylinder, an air blowing channel 12 and an air suction channel 13 are formed in the suction nozzle 3 through a partition plate, and the air blowing channel 12 is positioned behind the air suction channel 13; one end of the air blowing hose 5 is communicated with an air blowing channel 12 arranged in the suction nozzle 3, and the other end of the air blowing hose is connected with an air outlet of the fan 10; one end of the air suction hose 4 is communicated with an air suction channel 13 arranged in the suction nozzle 3, the other end of the air suction hose 4 is connected with a dirt suction pipe 9, the other end of the dirt suction pipe 9 is communicated with the side wall of the garbage collection box 8, and the dirt suction pipe 9 is positioned below the air inlet pipe 7; the garbage suction and pickup device is not provided with any device which moves or gathers garbage particles by means of mechanical action except the suction nozzle 3, such as a common side vertical brush or a common rolling brush, so that the phenomena of high-speed friction and abrasion between the side vertical brush or the rolling brush and a road surface or a road structure are thoroughly eliminated in the cleaning operation process, the collision damage with a highway guardrail pile is avoided, and the problem that the conventional sweeper is easy to damage bristles is also reduced.
Further, as shown in fig. 2, in order to guide the positive pressure air flow generated by the blower 10 in the blowing path 12, the rear side wall of the suction nozzle 3 adjacent to the blowing path 12 is formed in an arc shape.
Further, as shown in fig. 2, in order to adjust the ground clearance of the suction nozzle 3, rollers 14 are connected to the front and rear side walls of the suction nozzle 3 through connection brackets, respectively, and the ground clearance of the suction nozzle 3 can be adjusted by replacing the rollers 14 having different diameters.
Furthermore, as shown in fig. 1 to 4, the wet dust collector includes a clean water tank 11 fixed on the auxiliary frame 6, a dust removal water pump is arranged on the clean water tank 11, a water inlet of the dust removal water pump is communicated with the inside of the clean water tank 11 through a water suction pipe, a water outlet of the dust removal water pump is connected with a shunt pipe, the sewage suction pipe 9 is longitudinally provided with a plurality of groups of spray nozzles 91 along the sewage suction pipe, each group of spray nozzles 91 is multiple and is arranged on the side wall of the sewage suction pipe 9 in a surrounding manner, each spray nozzle 91 is communicated with the shunt pipe through a water pipe, a plurality of second spray nozzles 92 are arranged on the circumferential side wall of the suction nozzle 3, and each second spray nozzle 92 is communicated with the shunt pipe through a water pipe. The dust removal device adopts a wet dust removal principle, in order to strengthen the wet dust removal effect, and can control the dust removal intensity as required, namely, a plurality of relative spray nozzles are arranged on a plurality of sections in the suction nozzle 3 and the sewage suction pipe 9 in a layered manner, and a plurality of layers of spray nozzles can be selected to participate in dust removal as required in the process of sucking and conveying the garbage, so that dust-containing airflow is subjected to multi-section and dead-angle-free repeated spraying, the garbage is fully sprayed with moisture in the processes of sucking, picking and conveying, collision and coagulation are generated, the particle size and the density are increased, the garbage is ensured to be fully settled in the garbage collection box 8, the dust in the exhaust is prevented, and secondary pollution is caused.
Furthermore, as shown in fig. 1, the driving device includes a power take-off transfer case 2 arranged on the main frame 1, an input end of the power take-off transfer case 2 is connected with an output shaft of a gearbox arranged on the chassis through a transmission shaft, and an output end of the power take-off transfer case 2 is connected with an input end of the fan 10 and an input end of the dust removal water pump through a belt transmission mechanism respectively. The power of all the operation devices is from a chassis engine, power distribution is carried out through a power take-off transfer case arranged at the rear part of a chassis gearbox, a fan and a dedusting water pump are driven to work in a mechanical transmission mode, and meanwhile, the chassis is driven to run at the required operation speed.
When the invention cleans the garbage on the road surface, the positive pressure air flow generated by the rotation of the fan 10 flows into the blowing channel 12 arranged in the suction nozzle 3 through the blowing hose 5 by starting the fan 10, the blown air flow disturbs the garbage on the road surface under the guidance of the arc-shaped back plate of the blowing channel 12, so that the garbage along with the air flow reflected by the road surface starts upwards and enters the air suction channel 13 arranged in the suction nozzle 3, meanwhile, the air suction channel 13 is connected with the air inlet of the garbage collection box 8 through the air suction hose 4 and the dirt suction pipe 9, the air outlet of the garbage collection box 8 is connected with the air inlet of the fan 10 through the air inlet pipe 7 to form an air flow circulation, therefore, the negative pressure air flow generated by the rotation of the fan 10 can suck the pavement garbage mixed with the disturbance of the back blowing air into the garbage collection box 8, and the cross section area of the garbage collection box 8 through the dust-containing air flow is suddenly increased, referring to figure 1, the bottom of the bin 8 is inclined and the cross-sectional area of the bin 8 increases away from the suction pipe 9, so that the airflow velocity decreases rapidly and the particles of waste settle and separate from the airflow.
In conclusion, the invention can not only realize single-engine driving for the expressway cleaning quick sweeper, achieve the purposes of improving transmission efficiency, saving fuel, reducing emission and protecting environment, but also lead the exhaust of the fan 10 into the air blowing channel 12 of the suction nozzle 3 to disturb the road garbage, help the road garbage to smoothly enter the air suction channel 13 in the suction nozzle 3 in the process of high-speed driving of the vehicle, not only realize the starting and the suction of the garbage under the condition of high relative speed between the suction nozzle 3 and the road surface, but also realize quick dust suction without using a method of mechanical friction or sliding with the road surface, ensure the quick cleaning operation and meet the speed requirement of the expressway on cleaning operation.
Although the preferred embodiments of the present invention have been disclosed, the embodiments of the present invention are not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (7)
1. A quick sweeper for cleaning a highway is characterized by comprising:
a chassis comprising a main frame (1) and a sub-frame (6);
the garbage suction and pickup device is arranged on the auxiliary frame (6) and is used for sucking and picking up garbage on the road surface;
the wet dust removal device is arranged on the auxiliary frame (6) and is used for reducing dust generated in the process of sucking and picking up the garbage by the garbage sucking and picking up device;
and the driving device is arranged on the main frame (1) and used for driving the garbage suction and pickup device and the dust removal device to work.
2. A quick sweeper for highway cleaning according to claim 1 wherein said garbage pick-up device comprises:
the garbage collection box (8) is arranged on the auxiliary frame (6);
the fan (10) is arranged on the side wall of the garbage collection box (8), and an air inlet of the fan (10) is communicated with the side wall of the top of the garbage collection box (8) through an air inlet pipe (7);
the suction nozzle (3) is suspended below the auxiliary frame (6) through a suspension mechanism, an air blowing channel (12) and an air suction channel (13) are formed in the suction nozzle (3) through a partition plate, and the air blowing channel (12) is located behind the air suction channel (13);
one end of the blowing hose (5) is communicated with a blowing channel (12) arranged in the suction nozzle (3), and the other end of the blowing hose is connected with an air outlet of the fan (10);
and one end of the air suction hose (4) is communicated with an air suction channel (13) arranged in the suction nozzle (3), the other end of the air suction hose is connected with a dirt suction pipe (9), the other end of the dirt suction pipe (9) is communicated with the side wall of the garbage collection box (8), and the dirt suction pipe (9) is positioned below the air inlet pipe (7).
3. The quick sweeper for cleaning the expressway according to claim 2, wherein the rear side wall of the suction nozzle (3) near the blowing passage (12) is arc-shaped.
4. The quick sweeper for cleaning the expressway according to claim 2, wherein the front and rear side walls of the suction nozzle (3) are respectively connected with a roller (14) for adjusting the ground clearance of the suction nozzle (3) through a connecting frame.
5. The rapid sweeping vehicle for highway cleaning according to claim 2 wherein the suspension mechanism is a lift cylinder.
6. The quick sweeper for cleaning the expressway according to claim 2, wherein the wet dust removing device comprises a clean water tank (11) fixed on the auxiliary frame (6), a dust removing water pump is arranged on the clean water tank (11), a water inlet of the dust removing water pump is communicated with the inside of the clean water tank (11) through a water pumping pipe, a water outlet of the dust removing water pump is connected with a shunt pipe, a plurality of groups of first spray nozzles (91) are longitudinally arranged on the dirt suction pipe (9), each group of first spray nozzles (91) is provided with a plurality of spray nozzles and is arranged on the side wall of the dirt suction pipe (9) in a surrounding mode, each first spray nozzle (91) is communicated with the shunt pipe through a water pipe, a plurality of second spray nozzles (92) are arranged on the circumferential side wall of the suction nozzle (3), and each second spray nozzle (92) is communicated with the shunt pipe through a water pipe.
7. The quick sweeper for cleaning the expressway according to claim 6, wherein the driving device comprises a power take-off transfer case (2) arranged on a main frame (1), the input end of the power take-off transfer case (2) is connected with the output shaft of a gearbox arranged on the chassis through a transmission shaft, and the output end of the power take-off transfer case (2) is respectively connected with the input end of the fan (10) and the input end of the dust removal water pump through a belt transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111316658.XA CN113756243A (en) | 2021-11-09 | 2021-11-09 | A quick motor sweeper for highway is kept a public place clean |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111316658.XA CN113756243A (en) | 2021-11-09 | 2021-11-09 | A quick motor sweeper for highway is kept a public place clean |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113756243A true CN113756243A (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111316658.XA Pending CN113756243A (en) | 2021-11-09 | 2021-11-09 | A quick motor sweeper for highway is kept a public place clean |
Country Status (1)
| Country | Link |
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| CN (1) | CN113756243A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4986972A (en) * | 1971-12-08 | 1974-06-13 | Michael Paul Kudinoff | Vacuum type street sweeper |
| CN2291447Y (en) * | 1997-04-04 | 1998-09-16 | 秦琪 | Dust absorption sweeping vehicle |
| CN1974934A (en) * | 2005-10-07 | 2007-06-06 | 杜勒沃国际股份公司 | Cleaning unit of roads and the like |
| CN101016732A (en) * | 2007-02-14 | 2007-08-15 | 长沙中联重工科技发展股份有限公司 | Only absorbing sweeper truck with combined suction nozzle |
| ATE556779T1 (en) * | 2003-06-05 | 2012-05-15 | Daikin Ind Ltd | DISCHARGE DEVICE AND AIR PURIFICATION DEVICE |
| CN106996089A (en) * | 2017-05-26 | 2017-08-01 | 宿迁洁丽环保设备制造有限公司 | A kind of sweeping machine Material collecting box for harvesting device for reducing dust |
| CN109706876A (en) * | 2018-12-26 | 2019-05-03 | 长沙中联重科环境产业有限公司 | Pneumatic plant and sweeping machine |
-
2021
- 2021-11-09 CN CN202111316658.XA patent/CN113756243A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4986972A (en) * | 1971-12-08 | 1974-06-13 | Michael Paul Kudinoff | Vacuum type street sweeper |
| CN2291447Y (en) * | 1997-04-04 | 1998-09-16 | 秦琪 | Dust absorption sweeping vehicle |
| ATE556779T1 (en) * | 2003-06-05 | 2012-05-15 | Daikin Ind Ltd | DISCHARGE DEVICE AND AIR PURIFICATION DEVICE |
| CN1974934A (en) * | 2005-10-07 | 2007-06-06 | 杜勒沃国际股份公司 | Cleaning unit of roads and the like |
| CN101016732A (en) * | 2007-02-14 | 2007-08-15 | 长沙中联重工科技发展股份有限公司 | Only absorbing sweeper truck with combined suction nozzle |
| CN106996089A (en) * | 2017-05-26 | 2017-08-01 | 宿迁洁丽环保设备制造有限公司 | A kind of sweeping machine Material collecting box for harvesting device for reducing dust |
| CN109706876A (en) * | 2018-12-26 | 2019-05-03 | 长沙中联重科环境产业有限公司 | Pneumatic plant and sweeping machine |
Non-Patent Citations (2)
| Title |
|---|
| 田刚等: "《扬尘污染控制》", 31 January 2013, 中国环境出版社 * |
| 郭贵平等: "《高等级公路养护技术与养护机械》", 30 June 2001, 人民交通出版社 * |
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Application publication date: 20211207 |
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| RJ01 | Rejection of invention patent application after publication |